silverlight 4.0 – Asynchronous WCF service, how to return any variable – Education Career Blog

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public int SendServiceCallFromAnotherClass()
{
   client.SendCompleted += new EventHandler<SendCompletedEventArgs>(client_SendCompleted);

   client.SendAsync(clientSettings);

   //i have to return some int here from my service
}

void client_SendCompleted(object sender, SendCompletedEventArgs e)
{
   //so here i have to return int variable from my SendServiceCallFromAnotherClass method
}

,

You can’t return a variable from the send completed callback because its signature is defined by the SendAsync parameter delegate (EventHandler<SendCompletedEventArgs>). What you can do is invoke some other method passing the result of the async operation result which you would find in the e parameter.

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